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1 /* | 1 /* |
2 * Copyright (C) 2006, 2008 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2006, 2008 Apple Computer, Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 */ | 27 */ |
28 | 28 |
29 #ifndef FontCache_h | 29 #ifndef FontCache_h |
30 #define FontCache_h | 30 #define FontCache_h |
31 | 31 |
32 #include <limits.h> | 32 #include <limits.h> |
33 #include <wtf/Vector.h> | 33 #include <wtf/Vector.h> |
34 #include <unicode/uscript.h> | |
35 #include <wtf/unicode/Unicode.h> | 34 #include <wtf/unicode/Unicode.h> |
36 | 35 |
37 #if PLATFORM(WIN) | 36 #if PLATFORM(WIN) |
38 #include <objidl.h> | 37 #include <objidl.h> |
39 #include <mlang.h> | 38 #include <mlang.h> |
40 #endif | 39 #endif |
41 | 40 |
42 namespace WebCore | 41 namespace WebCore |
43 { | 42 { |
44 | 43 |
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69 #endif | 68 #endif |
70 | 69 |
71 void getTraitsInFamily(const AtomicString&, Vector<unsigned>&); | 70 void getTraitsInFamily(const AtomicString&, Vector<unsigned>&); |
72 | 71 |
73 FontPlatformData* getCachedFontPlatformData(const FontDescription&, const At
omicString& family, bool checkingAlternateName = false); | 72 FontPlatformData* getCachedFontPlatformData(const FontDescription&, const At
omicString& family, bool checkingAlternateName = false); |
74 SimpleFontData* getCachedFontData(const FontPlatformData*); | 73 SimpleFontData* getCachedFontData(const FontPlatformData*); |
75 FontPlatformData* getLastResortFallbackFont(const FontDescription&); | 74 FontPlatformData* getLastResortFallbackFont(const FontDescription&); |
76 | 75 |
77 void addClient(FontSelector*); | 76 void addClient(FontSelector*); |
78 void removeClient(FontSelector*); | 77 void removeClient(FontSelector*); |
79 // TODO(jungshik): Is this the best place to put this function? It may | |
80 // or may not be. Font.h is another place we can cosider. | |
81 // Return a font family for |script| and |FontDescription.genericFamily()|. | |
82 // It will return an empty atom if we can't find a font matching | |
83 // script and genericFamily in FontDescription. A caller should check | |
84 // the emptyness before using it. | |
85 static AtomicString getGenericFontForScript(UScriptCode script, const FontDe
scription&); | |
86 | 78 |
87 unsigned generation(); | 79 unsigned generation(); |
88 void invalidate(); | 80 void invalidate(); |
89 | 81 |
90 size_t fontDataCount(); | 82 size_t fontDataCount(); |
91 size_t inactiveFontDataCount(); | 83 size_t inactiveFontDataCount(); |
92 void purgeInactiveFontData(int count = INT_MAX); | 84 void purgeInactiveFontData(int count = INT_MAX); |
93 | 85 |
94 private: | 86 private: |
95 FontCache(); | 87 FontCache(); |
96 | 88 |
97 // These methods are implemented by each platform. | 89 // These methods are implemented by each platform. |
98 FontPlatformData* getSimilarFontPlatformData(const Font&); | 90 FontPlatformData* getSimilarFontPlatformData(const Font&); |
99 FontPlatformData* createFontPlatformData(const FontDescription&, const Atomi
cString& family); | 91 FontPlatformData* createFontPlatformData(const FontDescription&, const Atomi
cString& family); |
100 | 92 |
101 friend class SimpleFontData; | 93 friend class SimpleFontData; |
102 friend class FontFallbackList; | 94 friend class FontFallbackList; |
103 }; | 95 }; |
104 | 96 |
105 // Get the global fontCache. | 97 // Get the global fontCache. |
106 FontCache* fontCache(); | 98 FontCache* fontCache(); |
107 } | 99 } |
108 | 100 |
109 #endif | 101 #endif |
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